Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Canon IXUS 165 and Casio EX-ZR300 side-by-side from the front, back and top in their relative dimensions. Canon IXUS 165 has external dimensions of 95 x 54 x 22 mm (3.74 x 2.13 x 0.87″) and weighs 128 g (0.28 lb / 4.52 oz) (including batteries). Casio EX-ZR300 has external dimensions of 105 x 59 x 29 mm (4.13 x 2.32 x 1.14″) and weighs 205 g (0.45 lb / 7.23 oz) (including batteries).
Below you can see the front-view size comparison of the Canon IXUS 165 and the Casio EX-ZR300. Canon IXUS 165 is clearly the smaller of the two cameras. Its body is 10mm narrower, 5mm shorter and 7mm thinner than Casio EX-ZR300.
Here is the back view size comparison of the Canon IXUS 165 and Casio EX-ZR300.
Now lets look at the top view comparison of Canon IXUS 165 and Casio EX-ZR300.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon IXUS 165 is significantly lighter (77g ) than the Casio EX-ZR300 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon IXUS 165 nor Casio Exilim EX-ZR300 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Casio EX-ZR300's 3.00" LCD screen is slightly larger than Canon IXUS 165's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.